package cn.kgc.fxy.smbms.web;

import cn.kgc.fxy.smbms.service.Constant;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class CheckUserLoginInterceptor implements HandlerInterceptor {
    @Override
    public boolean preHandle(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o) throws Exception {
        Object user=httpServletRequest.getSession().getAttribute(Constant.USER);
        if(user==null){
            String path=httpServletRequest.getScheme()+"://"+httpServletRequest.getServerName()
                    +":"+httpServletRequest.getServerPort()+httpServletRequest.getContextPath()+"/toLogin";
            System.out.println("path = " + path);
            httpServletResponse.sendRedirect(path);
            return false;
        }
        return true;
    }

    @Override
    public void postHandle(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o, ModelAndView modelAndView) throws Exception {

    }

    @Override
    public void afterCompletion(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o, Exception e) throws Exception {

    }
}
